Draft attachment for plows.



G. F. STRNAD. DRAFT ATTACHMENT FOR FLOWS. APPLICATION FILED APR.30,1909.

Patented Oct. 12,1909.

camera r. s'rnnan', or NAEKA, KANSAS.-

DRAFT ATTACHMENT FOR FLOWS.

Specification of Letters Patent.

Patented Oct. 12, 1909.

Application filed April -30, 1909. Serial No. 493,148.

To all whom it may concern:

Be it known that I, CHARLIE F. STRNAD, a citizen of the United States,residing at Narka, in the county of Republic and State of Kansas, haveinvented a new and useful Draft Attachment for Plows, of which thefollowing is a specification.

The invention relates to improvements in draft attachments for plows.

The object of the present invention is to improve the construction ofdraft attachments for plows, and to provide a simple, inexpensive andefficient draft attachment of great strength and durability, designedfor use in connection with a four horse evener or equalizer, and capableof enabling such rious changes in the form, proportion, size and mlnordetails of construction, withm the scope of the clalms, may be resortedtow1th-- out departing from the spirit or sacrificing any of theadvantages of. the invention.

In the drawing :Figure 1 is a perspective View of a draft attachment,constructed in accordance with this invention and shown applied to aplow. Fig. 2 is an enlarged horizontal sectional view of the frontportion of the draft attachment. Fig. 3 is a detail sectional view,taken substantially on the line 33 of Fig. 2. Fig. 4 is a detail view ofthe link plate.

Like numerals of reference designate corresponding parts in all thefigures of the drawing.

The draft attachment comprises in its construction a pair oftransversely disposed bars or members 1 and 2, arranged one above theother in spaced relation and extending laterally from the front of aplow beam 3 and forming a transverse draft member. The transverse bars 1and 2 have flat inner horizontal faces, and they are provided at theirouter faces with longitudinal flanges l and 5, located at the rear edgesof the draft bars and projecting upwardly from the upper bar anddownwardly from the lower draft bar, as clearly illustrated in Fig. 3 ofthe drawing. The outerends 6 of the draft bars are curved rearwardly toprovide greater space in which an evener or equalizer (not shown) mayoperate.

The inner ends of the draft bars are spaced apart to receive a linkplate 7, disposed horizontally and provided at its rear edge withvertical lugs or ears 8, located at v the outer faces of and adjustablyconnected to a pair of vertical clevises 9, secured to the plow beam atthe side faces thereof.

The clevises 9 are provided at intervals with perforations and the earsor lugs of the link plate are pivoted to the clevises by a transversebolt 10, which permits an oscillatory movement of the link plate. Thelink plate is provided at intervals with perforations 11, adjustablyreceiving a bolt 12, which also pierces the upper and lower draft bars.This adjustment of the inner ends of the draftbars cooperates with anintermediate adjustment of a clevis ring 13 to permit an equalizer orevener to be arranged properly to suit the width of the furrows. Theclevis 13, which, in the embodiment of the invention illustrated in theaccompanying drawing, is in the form of a ring, is secured between theupper and lower draft bars by means of a bolt 14, and the said draftbars are provided at intervals with perforations 15 to permit theadjustment of the bolt toward and from the plow beam.

The outer ends of the draft bars are adjustably connected with the plowby a flexible connection 16, extending rearwardly from the outer ends ofthe draft bars to a point adjacent to and above the landside of theplow. The flexible connection consists of a plurality of links or linkrods, provided with terminal eyeslinked into each other. The front linkrod 17 has its front end 18 threaded and engaging a threaded opening 19of a swivel eye 20. The swivel eye 20 has a shank 21, which is pivotedbetween the outer end of the draft bars by a bolt 22. The rear rod 23 ofthe flexible connection is connected by a ring 24 with a short link 25,which is secured to the plow beam at a point above the landside 26 by abolt 27. The

bolt 27 also pierces a clip 28 against which is fitted the short link25, as clearly shown in Fig. 1 of the drawing. The threaded rod and theswivel eye permit an adjustment of the flexible connection, and. thedraft device is reversible to arrange it at either side of the plowbeam. The attachment of the flexible connection to the plow at a pointadjacent to and directly above the landside and at a point below theplaneof the top of the mold board of the plow affords a light draft, andthe employment of the double spaced draft bars arranges the clevis ringand the link plate centrally of the same, which eliminates twisting ofthe parts and permits a free pivotal movement of the link on thetransverse pivot bolt 8. The clip plate by being arranged against theplow i beam directly above the plane of the top of the mold board islocated at one side of the space where all the trash is thrown by thesoil turned over by the mold board, and the device equ-alizes orbalances the draft on the plow, and affords increased space for the iattachment of a rolling col-ter.

Having thus fully described my invention, what I claim as new anddesireto secure by Letters Patent, is

1. The combination with a plow, of a draft attachment including atransversely disposed draft member connected at its inner end to thefront end of the plow beam and extending laterally therefrom, avertically disposed clip plate secured to the,

plow beam adjacent to and directly above the landside of the plow and ata point below the plane of the top of the mold disposed flexibleconnection provided at its front end with a threaded portion to engagethe said eye and having means at its rear end for securing it to therear portion of a plow, and a clevis carried by the draft bars.

3. A draft attachment for plows comprising a horizontal link plateprovided with spaced lugs, a horizontal bolt piercing the lugs andadapted to connect the same with the front end of a plow beam, spacedtransversely disposed draft bars receiving the link plate between themand connected with the same at the outer side thereof, a flexibleconnection secured between the outer ends of the draft bars and providedwith means i for connecting it with the rear portion of a plow, and aclevis carried by the draft bars and arranged between the same.

4. A draft attachment for plows including a link plate provided with.means for pivoting it to a plow beam, spaced draft bars having flatinner faces and receiving the link plate between them and provided attheir outer faces with longitudinal flanges, the outer ends of the saiddraft bars being curved rearwardly, a flexible connection securedbetween the outer ends of the draft bars and provided with means forconnecting it to the rear portion of a plow, and a clevis also securedbetween the draft bars and extending in advance of the same.

In testimony, that I claim the foregoing

